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Figure 23
(a) The four-connected P skeleton in TiP4N4 in which P atoms center PN4 tetrahedra, highlighted in the upper part. Ti atoms are located in the octagonal tunnels. (b) The structure of CrB4 (crb). The charge transfer from Cr to B atoms makes B atoms adopt a Ψ-C skeleton. |

journal menu![[Figure 23]](ra5152fig23.jpg)
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